One factor is the element of surprise. In these stories, bigfoot usually appears suddenly, catching people off - guard. The descriptions of its appearance, with long hair and a large, ape - like build, are intimidating. Moreover, the idea that there could be a large, unknown creature lurking in the woods where people often go for recreation or work makes these stories truly terrifying. For example, a hiker may feel safe in the forest until they have a bigfoot encounter, which shatters their sense of security.
The unknown. In scary flash stories, things that are not clearly defined or understood create fear. For example, a strange noise in the dark. You don't know what's making it, and that scares you.
Isolation also plays a role. In many scary stories, the characters are alone, like in an abandoned building or a desolate forest. There's no one to turn to for help, which makes the situation seem more dire. Also, the use of the supernatural, such as ghosts or curses, adds to the terror because it goes beyond our normal understanding of the world. Another element is the sense of impending doom. The feeling that something bad is about to happen and there's no way to stop it.
The unknown. In full scary stories, not knowing what's going to happen next or what that strange noise is really creates fear. For example, in a story about a haunted house, the creaking floorboards could be just old wood, but the idea that it might be something supernatural is scary.
The unfamiliarity of the past periods is a big factor. For example, in stories set in medieval times, the different beliefs, superstitions, and the harsh living conditions create an atmosphere of fear. People didn't have the modern knowledge we have now, and things like diseases were often blamed on the supernatural.
The atmosphere plays a huge role. A story set in a desolate, fog - covered graveyard at midnight is already spooky. Also, the use of our primal fears, such as the fear of the dark or the fear of being hunted. In a story where a person is being chased by an unseen predator through a pitch - black forest, it taps into those basic fears that we've had since ancient times.
I think it's the sense of mystery and the possibility that there could be a powerful and elusive creature out there. The stories often involve Bigfoot being very strong and able to move quickly and quietly. Also, many of the encounters happen in isolated areas, which adds to the fear factor.
The unknown is a big factor. In many extreme scary stories, there are things that can't be easily explained, like the strange noises in a haunted house or the shadowy figures. It makes our minds race with all kinds of possibilities, which is really terrifying.
The unknown is a big factor. In a forest, there could be all kinds of hidden things like unseen creatures or dangerous terrains. For example, in many stories, there are strange noises that the characters can't identify. It could be a wild animal or something more supernatural.
The unknown. In true scary short stories, often things are not fully explained. For example, in the story of the couple in the old house, we don't know what was in the attic with the glowing eyes. It leaves our imagination to run wild and that's scary.
The suddenness also plays a role. Like the hiker who was suddenly faced with a shadowy figure after just tripping. There's no time to prepare, and that quick shift from normal to deadly is scary. Another element could be the isolation. The girl in the abandoned house was all alone, cut off from help, which makes her situation more terrifying as there's no one to save her when she's in danger.